Question

Concave mirror is used in headlights of vehicles because it

Answer 1

Answer:

1. focuses light from the bulb onto nearby vehicles
2. Sends parallel rays
3. Fits well into the shape of the headlight
4. Cheaper than other mirrors

Explanation:

Concave mirror is used in headlights of vehicles, because when the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances). For the same reason, concave mirror is used in torches also.